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CVE

CVE-2026-33001

Jenkins has a link following vulnerability allows arbitrary file creation
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CVE

CVE-2026-33001

Jenkins has a link following vulnerability allows arbitrary file creation

Jenkins 2.554 and earlier, LTS 2.541.2 and earlier does not safely handle symbolic links during the extraction of .tar and .tar.gz archives, allowing crafted archives to write files to arbitrary locations on the filesystem, restricted only by file system access permissions of the user running Jenkins.

This can be exploited to deploy malicious scripts or plugins on the controller by attackers with Item/Configure permission, or able to control agent processes.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-33001, https://github.com/jenkinsci/jenkins/commit/6dc99937605d5bddfeaae43a4cd14c2571e23adc, https://github.com/jenkinsci/jenkins, https://github.com/jenkinsci/jenkins/releases/tag/jenkins-2.555, https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657

Severity

8.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
8.8
EPSS Probability
0.00261%
EPSS Percentile
0.49452%
Introduced Version
0
Fix Available
2.555

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